Fwd: Re: Safety issue: 7.62 NATO == .308 Win NOT!!!
JFA
jf_avon at videotron.ca
Mon Jan 15 11:06:20 PST 2001
Reply from a non CPunks friend:
==================BEGIN FORWARDED MESSAGE==================
Hummmm !
I have loaded 7,62 and .308 cartridges in my L1A1 ( FN variant made by
Lightgow ) and in my FR8 ( spanish bolt action carbine ) without any problems.
One thing though !
When you reload a military brass, you should always, always, reduce your first
(tests) charges of about 10%.
Reason. The military brass is thicker, so there is less space (volume) in the
cartridge to accomodate the powder.
Not a problem when you are using BLC-2 or other similar powder, since the full
charge that I was using was filling the cartridge up to the neck ( 52 grains
of powder over a 125 grain softpoint bullet). So, if by mistake, a military
brass would have mixed with my "federal" brass, I would have had a big mess on
my reloading press.... and not in my face.
I always used the same technique with all the calibers that I reload, and
always developed powerfull but safe loads.
Apart from an empty case volume, I do not see any problem using 7,62 or .308
ammo in the same rifle.
After taking a look at the M1A1 rifle that blew up, and especially at the
split shell and almost ejected primer, the only conclusion that I can come
with is :
a.. The wrong type of powder was used ( faster burning rate like pistol
powder ) ;
b.. Something was blocking the barrel ( pine needle, small rock, forgotten
(!!!) cleaning cloth, etc ) preventing the bullet from exiting, and causing
the pressure inside the barrel to exit through the weakest point of the
rifle....OUCH !
c.. Looking at the primer, some extraordinary pressures develop in the
barrell !
d.. So, if the barrel started splitting apart near the chamber, that would
explain the split case !
Glad it wasn't my rifle...and my face !
Regards,
===================END FORWARDED MESSAGE===================
More information about the cypherpunks-legacy
mailing list